Answers
I believe it is 137 kg. (the third one down)
Related Questions
An ecologist is studying Dunaliella salina a single celled algae in a local pond. The pond is located near a construction site and the ecologist wants to know what affect, if any, the construction site is having on the pond, as there has been a steady decline in the Dunaliella salina population. In order to complete their study the ecologist would like to examine the organelles inside Dunaliella salina. If they would like to examine the inner structure of the chloroplasts of an already dead Dunaliella salina, what microscope would be best suited for this task? *
A.)dissecting microscope
B.)compound microscope
C.)scanning electron microscope
D.)transmission electron microscope
Answers
In the given scenario, to see the structures of chloroplast scientists can use a transmission electron microscope. The correct option is D.
What is transmission electron microscope?Transmission electron microscopes (TEM) are microscopes that visualize specimens and basically create a much higher magnification of an image using an electron particle beam.
TEMs have the ability to magnify objects up to 2 million times.
Transmission electron microscopy (TEM) is a popular method for examining the ultrastructure of organelles.
TEM generates high-resolution pictures by passing electrons through an ultrathin segment of a sample and magnifying the resulting image with a series of lenses.
The electron beam of the TEM penetrates thin slices of biological material, allowing the study of individual components of cells and organelles.
Thus, the correct option is D.
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How are meiosis and mitosis different?
A. Cells go through telophase In mitosis, but In meiosis they don’t.
B. Chromatids from only during the process of meiosis.
C. Mitosis produces haploid cells, while meiosis produces diploid cells.
D. Only meiosis results In a reduction In chromosome number.
Answers
Answer: D. Only meiosis results In a reduction In chromosome number.
Explanation:
I got it correct on the test
Focusing on which two central themes in biology would help a student understand why animals come in
different shapes and sizes?
a. cellular basis for life; homeostasis
b. structure and function; unity and diversity of life
c.matter and energy, homeostasis
d. science as a way of knowing; interdependence of nature
Answers
Answer:
b) structure and function
Explanation:
all animals do different things and play different roles in nature, so they have differnt structures and functions to help carry out those roles.
which best defines cohesion
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Answer:
The act or state of sticking together tightly especially
Explanation:
That is one definition.
Hope that helps.
Answer:
Cohesion is sticking of particles of same substance.
Explanation:
For example we say water has cohesion property it means water molecules are cohesive with other water molecules.
Help!!!!A student reads that some pea plants have violet flowers, while some have white flowers. Breeding a pea plant with violet flowers with a pea plant with white flowers produces offspring,
some of which have violet flowers, while some have white flowers.
How do the offspring express the gene for flower color from the parent plants?
the random expression of one gene obtained from a single parent plant
the expression of one gene obtained from each parent plant
the expression of a gene that is inherited by any cell of the offspring
the random expression of a gene that is more numerous in the cells of the offspring
Answers
Answer:
its c. The expression of a gene that is inherited by any cell of the offspring
Explanation:
What type of organic compound is lactose
Answers
Using complete sentences, compare and contrast the terms living and biotic. In your response, illustrate using examples and appropriate compare-and-contrast vocabulary
Answers
Both living things and biotic factors can be alive.
Unlike living things, biotic things may not be alive; they may have once lived or came from something living.
I included an example of something both living and biotic, such as flowers.
I included an example of something biotic, but not living, such as paper.
I used compare-and-contrast vocabulary.
Explanation:
As you all know that living is a synonym for biotic, as both discuss the measures of life. It significantly includes plants, animals, humans, predators, etc.
What is biotic?Biotic may be defined as something that is closely related to living organisms or something that is directly derived through the action of living organisms.
As compared to living, biotics may not always be alive, but it talks for a long period. Biotic is something that has once lived or emanated from something living.
Examples like plants, animals including humans are categorized under the category of living, while products such as rubber, latex, cow dung, paper, etc are biotic products that are not living.
Therefore, as you all know that living is a synonym for biotic, as both discuss the measures of life. It significantly includes plants, animals, humans, predators, etc.
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What organelle is responsible for cleaning and removing waste
Answers
Answer:
Lysosomes are responsible for cleaning and removing waste.
Which series of processes CANNOT
happen in the water cycle?
Answers
Answer:
d...
Explanation:
Can drinking Gatorade make you a baller like Michael Jordan, claim evidence and reasoning
Answers
Answer:
although Gatorade has electro lights and other substances this is false you need to train be able to train yourself so you can shoot hoops like Jordan
Explanation:
Answer:
Sorryy, MJ is the G.O.A.T, and in my opinion, Gatorade gives you energy.. not Michael Jordan's super powers ;)
Explanation:
Which question can be answered by an experiment?
A)
Do sugar substitutes cause cancer?
B)
Did an ice age kill off the mastodons?
What caused the extinction of the dinosaurs?
D)
Are all people susceptible to the Hunta virus?
Answers
Answer:
a
Explanation:
Viruses are considered to be___________ because________________
Answers
Answer:
Viruses are considered to be non-living because they arent
Answer:
I think it's viruses are considered to be non-living because a virus can't reproduce by itself. It must hyjack a cells system to be able to reproduce.
BRAINLIEST!! Are Dogs mammals? :( asking for a friend
Answers
Answer:
yeheeeea boooooii in other words yes
Explanation:
Dogs have hair and fur and they are warm blooded vertibretes
In year 0, there are 789 bees in a population. The death rate is .21bees/year and the birth rate is .14bees/year. What will the population be in year 1?plsss help I have 19minutes left on my test !!!
Answers
Answer:
hcfdfvjxdhjgxgm
Explanation:
For each food listed below, choose whether it has all single carbon-to-carbon bonds or at least one double carbon-to-carbon bond.
Answers
Answer:
Peanut Butter: All single carbon-to-carbon bonds
Sunflower Oil: At least one double carbon-to-carbon bond
Cheddar Cheese: All single carbon-to-carbon bonds
Explanation:
B. How does the appearance of a seed on the SIMULATION pane chan
nce the
seed has sprouted?
Answers
NEED RN! MARKING BRAINLIST WORTH 100!! Put in order from SMALLEST to LARGEST how the structures of plants, animals, and fungi are organized.
skeletal muscle, digestive system, heart, cell, organism
Answers
Explain why an increase in precipitation and in the number of nearby factories has a greater impact on the occurrence of the mari flowers than changes in temperature, length of day, and invasive species
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Advanced rainfall during the growing period can lead to an improvement in the utilization of soil water, which is beneficial to root growth.While rain clearly affects food supply, it also can affect foraging behavior, reproductive and population growth rates, and competitive interactions in subtle ways that might be difficult for researchers to trace back to any particular sourceThe increase of precipitation and number of nearby factories has a greater impact on the occurrence of mari flowers because some types of precipitation has acid in it, and the acid has a high pH level. All of those chemicals have higher pH levels than changes in temperature.
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specifically how long did each eon last?
Answers
Answer:
one billion years
Explanation:
Question 3 About how long does it take the Moon to make one trip around the Earth? a) week b) year c) month d) day
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Answer:
C) month
Explanation:
it takes around 27 days, so rounded that would be about a month
Dead cells called keratinocytes make up the hair _____ which contains mtDNA and not nuclear DNA.
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Answer:
Hair follicles originate in the epidermis and have many different parts. Hair is a keratinous filament growing out of the epidermis. It is primarily made of dead, keratinized cells.Why are most oceanic trenches found in the Pacific Ocean?
Answers
Answer:
It's where the subduction zones are.
Explanation:
Subduction zones - when two plates meet and one gives way to the other.
Answer:
Most oceanic trenches found in the Pacific Ocean because it is the largest ocean, therefore it has most most convergent boundaries. Whenever a convergent boundary is formed it creates a trench because the oceanic plates are denser the continental plates so they sink. This is known as subduction.
What is difference between Microtubules and Microflaments?
Answers
Microfilaments
Microfilaments are fine, thread-like protein fibers, 3-6 nm in diameter. They are composed predominantly of a contractile protein called actin, which is the most abundant cellular protein. Microfilaments' association with the protein myosin is responsible for muscle contraction. Microfilaments can also carry out cellular movements including gliding, contraction, and cytokinesis.
Microtubules
Microtubules are cylindrical tubes, 20-25 nm in diameter. They are composed of subunits of the protein tubulin--these subunits are termed alpha and beta. Microtubules act as a scaffold to determine cell shape, and provide a set of "tracks" for cell organelles and vesicles to move on. Microtubules also form the spindle fibers for separating chromosomes during mitosis. When arranged in geometric patterns inside flagella and cilia, they are used for locomotion.
Hope this helps :)
Describe the four major spheres that support life on Earth.
Explain how rays AB and AC form both a line and an angle.
Answers
Two rays AB and AC having the same endpoint are opposite rays if they two rays are unequal but line AB is equal to line AC. Otherwise they are nonopposite. An angle is the union to two nonopposite rays AB and AC sharing the same endpoint. The angle is denoted by either angle BAC or angle CAB.
Which of the following might have influence whether or not a comet will collide with a nearby planet
-The ice and dust the comet is composed of
-The composition of the planets atmosphere
-gravitational attraction between two celestial objects
-none of the above
Answers
Net Force:
N
Direction:
Balanced or Unbalanced:
PLEASE ANSWER PLEASE
Answers
Answer:
balanced
Explanation:
Since equal pressure is being applied from opposite sides, they cancel out. think about pushing a box from opposite sides. Its not gonna move. Hope I was a help! :)
in what order did the events forming our solor system occur?
Answers
Answer:
The solar nebula spun faster and faster and flattened into a rotating disk. Most of the gas was pulled toward the center, where it became hot and dense, forming the Sun. Which statements describe planetesimals?
Explanation:
Answer:
The solar nebula spun faster and faster and flattened into a rotating disk. Most of the gas was pulled toward the center, where it became hot and dense, forming the Sun.
Explanation:
Which rely on other organisms for their energy and food supply? A. primary producers B. biomass C. autotrophs D. consumers
Answers
Answer: D, consumers
Explanation:
They eat other organisms for their energy.
HELP!
Which compound do
plants use for structural support?
o
A. cellulose
O B. glucose
O C. glycogen
0 D. starch
Answers
Answer:
A. Cellulose
Explanation:
In what way do erysipelas and exudative epidermitis differ?
A. Erysipelas causes skin lesions, whereas exudative epidermitis causes digestive issues like diarrhea.
B. Erysipelas is a bacterial infection, whereas exudative epidermitis is often caused by a parasite infestation
C. Erysipelas can result in death, whereas exudative epidermitis is less serious and rarely results in fatalities.
D. Erysipelas is caused by streptococcus, whereas exudative epidermitis is caused by staphylococcus.
Answers
Answer:
D. Erysipelas is caused by streptococcus, whereas exudative epidermitis is caused by staphylococcus.
Explanation:
Hope this helped!